exercise ball back extension with hands behind head
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将稳定球放在地上，面朝下躺在上面，臀部放在球上。 将脚靠在墙壁或其他稳定的表面上以获得支撑。 双臂交叉于脑后，双手触碰后脑勺。 启动你的核心，慢慢地将你的上半身抬离球，伸展你的背部，直到你的身体从头部到臀部形成一条直线。 在动作的最高点暂停片刻，然后慢慢将上半身放回起始位置。 重复所需的重复次数。
Place the stability ball on the ground and lie face down on top of it with your hips resting on the ball. Position your feet against a wall or other stable surface for support. Cross your arms behind your head, with your hands touching the back of your head. Engage your core and slowly lift your upper body off the ball, extending your back until your body forms a straight line from your head to your hips. Pause for a moment at the top of the movement, then slowly lower your upper body back down to the starting position. Repeat for the desired number of repetitions.
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exercise.cta.desc1 exercise ball back extension with hands behind head exercise.cta.desc2
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